Source: Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
spit
\Spit\, n. [OE. spite, AS. spitu; akin to D. spit, G. spiess, OHG. spiz, Dan. spid. Sw. spett, and to G. spitz pointed. [root]170.] 1. A long, slender, pointed rod, usually of iron, for holding meat while roasting.
2. A small point of land running into the sea, or a long, narrow shoal extending from the shore into the sea; as, a spit of sand. --Cook
3. The depth to which a spade goes in digging; a spade; a spadeful. [Prov. Eng.] --Halliwell.
Hope that helps. ;D